Cohen, H Accuracy of four commercially available serologic tests, including two office-based tests and a commercially available 13C urea breath test, for diagnosis of Helicobacter pylori. [electronic resource] - Helicobacter Mar 1999 - 49-53 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1083-4389 Standard No.: 10.1046/j.1523-5378.1999.09025.x doi Subjects--Topical Terms: AdultAgedAged, 80 and overBiopsyBreath TestsCarbon IsotopesEndoscopy, Digestive SystemFemaleHelicobacter Infections--bloodHelicobacter pylori--enzymologyHumansImmunoenzyme TechniquesMaleMiddle AgedPredictive Value of TestsReagent Kits, DiagnosticSensitivity and SpecificitySerologic TestsStomach--microbiologyUrease--metabolism